Improvement in metallic roofings



UNITED STATES PATENT OFFICE.

WILLIAM S. BELT, OF CINCINNATI, OHIO.

IMPROVEMENT IN METALLIC ROOFINGS.

Specification forming part of Letters Patent No. 117,855, dated August8, 1871.

To all whom it may concern:

Be it known that I, \VILLIAM S. BELT, of Oincinnati, Hamilton county,State of Ohio, have invented a certain new and useful Improvement inMetallic Roofing; and I do hereby declare the following to be asufficiently full, clear, and exact description thereof to enable oneskilled in the art to which my invention appertains to make and use it,reference being had to the accompanying drawing making part of thisspecification.

My invention consists of a peculiar form of crimp for the junction-edgesof metallic roofingplates, by which the customary triangular strips onthe sheathing, to which the plates are nailed, are entirely dispensedwith, and ample provision made for fastening the plates to thesheathing.

Figure 1 is a perspective view of a portion of a metallic roof embodyingmy invention. Fig. 2 is a section of the same.

A and A represent, respectively, the sheathing and rafters of a roof. Brepresents my im-' proved form of roofing-plate. At the junction of theplates one with another, at each side, V- formed crimps O are made, andin addition to this one side of each plate has an extension or flange,D, formed with the crimp, to which it is adjacent, by one operation of amachine I have designed for the purpose, which is the subject of aseparate application for Letters Patent. These crimps are uniform inlocation, size, and shape, the two sides of the V being so constructedas to constitute a right angle. The flange D is perforated at equaldistances with small apertures a for nails, the part of the next platebelow the flange being perforated to match, as shown at 1). Throughthese apertures small nails are driven into the sheathing A of the roof,the heads of the nails being fitted with copper washers or gaskets tomake water-tight joints over the apertures.

It will be seen that with this device for fastening the customaryV-shaped strips under the V'crimps are dispensed with, and that the edgeof the crimp is of much stifi'er form than that heretofore made, andless calculated to be affected by wind.

I claim- In a metallic roof, the arrangement of the V- crimped sheets BO, as shown and described, the novelty consisting in placing the crimpwith the perforated flange D over the crimp of the adjacent sheet, sothat each sheet will be fastened at each side to the sheathing of theroof.

In testimony of which invention I hereunto set my hand.

WM. S. BELT. Witnesses:

FRANK MILLWARD, J. L. WARTMANN.

